In Queen Mary's reign the secret landing of doubtful characters was a danger that had to be diligently guarded against, and the Lords of the Council received an agitated letter from Sir John St Leger on this subject just after the flight of Sir Peter Carew. Sir Peter had a castle and many friends at Dartmouth, and Sir John quotes him as often having said that if he were the King's enemy he could take 'Dartmouth Castle' and 'burne the Towne with fewer than a hundred persons and lett ynto the haven suche as pleased hym. I, also, am creadeably informed the way howe he should be able to do so. That within a myle, or les, of the said Towne, there is a very good open place called Black poole, for the queene's enemyes to lande, and invade, and from thense may come to the saide towne from the back side.'
But when Queen Elizabeth came to the throne, and Sir Peter was reinstated and held in great honour, the coast was still far from safe, and there is a letter written by the Queen in 1564 to her 'Right Trustie and wel-beloved' Sir Peter, commissioning him to get ready and arm two ships, that, as the 'cost of Devonshyre and Cornwall is by reput much harted with pyrattes and Rovers,' so he should repress and, as far as possible, capture them. Twenty-four years later a far more serious danger threatened, and the preparations against the Spanish Armada were very elaborate. Masses of the most stringent orders are still preserved amongst the House of Lords manuscripts, and to quote a few will give an idea of their nature and scope.
On July 11, 1588, it was ordered: 'That all persons of what degree soever ... whose armour and furniture shall not be found serviceable, for the first offence shall be put into the stocks one whole day, publicly; and for the second offence to the gaol for ten days' etc. Careful instructions are sent as to the choice of watchmen for the beacons and their duties; and a brief note refers to a letter written by the Council to Sir Walter Raleigh, then Warden of the Stannaries, demanding the muster-rolls of the tinners, both horse and foot, 'who poured to war' as well from Dartmoor's as from 'Mendip's sunless caves.'
After the Armada had been defeated, there were fears of another Spanish invasion, and in January, 1595-96, news came to the Deputy-Lieutenants and Justices of the Peace of Devon that 'The Queen has found it convenient to have her navy and certain companies of Soldiers for land-service in readiness to be victualled' with all possible speed 'for her service ... 400 quarters of wheat, 200 oxen, and 200 flitches of bacon are required from Devonshire.'